Blog & Archive

UCL Grand Challenges: Developing Solutions

Authors: UCL Grand Challenges Team and Dr Youngjun Cho (GDI Hub & UCL Interaction Centre) The Global Disability Innovation Hub is challenging assumptions about disability and the design of assistive technology. The GDI Hub takes an inclusive approach that draws on the expertise of disabled people, practitioners, academics and the ...
VR/AR Accessibility Youngjun Cho

Assessing mental workload and accessibility issues in VR/AR applications for people with disability

Virtual reality (VR) and Augmented Reality (AR) have great potential as a technological intervention for disabled people [1-3]. However, most human factor research into VR/AR does not consider people with disabilities. In this project, we consider the accessibility challenges (e.g. mental load, stress [5]) faced by people with a certain ...

Non-contact Physiological Measurement

As humans are homeothermic, our internal temperature is closely linked with numerous physiological and psychological mechanisms. Given this, human thermal patterns have been explored to improve the understandings of our body for a couple of centuries (Cho, 2019). Researchers have shown that physiological signatures can be captured via non-contact thermal ...

Automatic Recognition of Psychological States (eg. Mental Stress)

With sensing technology becoming pervasive in our everyday life, the ability to monitor human psychological states has become important in human computer interaction. Amongst such states, high level mental stress or mental workload is a common problem affecting mental, physical health and life in our modern society (Nash & Thebarge, ...

Deep Thermal Imaging Toolkit @CHI2018

Full source codes are available at https://github.com/deepneuroscience/DeepThermalImaging 1. Requirement Matlab (version>2012) MatConvNet (https://github.com/vlfeat/matconvnet): Deep CNN Framework for Matlab users. 2. Quick Summary DEEP THERMAL IMAGING - Main Libraries Void deep_thermal_imaging_training_and_testing(kfold, numberofclass, filename, directory, isoutdoor) Trains and Tests on the given dataset. Input variables: kfold (the number of k for k-fold cross ...
Robust Tracking of Respiratory Rate

Biomedical Optics Express Journal Paper: Supplementary Materials

An example clip to show the performance of the proposed method (from Dataset1 - controlled respiration in environments with non-constant temperature) An example clip to show the performance of the proposed method (from Dataset2 - unconstrained respiration with natural motion artefact) An example clip to show the performance of the ...

Matlab source codes: Stress Induction Tasks for “DeepBreath” @ACII2017

Source code for "DeepBreath Project" Description: We propose DeepBreath, a deep learning model which automatically recognises people's psychological stress level (mental overload) from their breathing patterns. Using a low cost thermal camera, we track a person's breathing patterns as temperature changes around his/her nostril. The paper's technical contribution is threefold ...
Youngjun Cho - Computer Science Conference Ranking

Computer Science Conference Ranking 2017/2018 – Prestigious Top 4 by “Research Area”

(Source: Google Scholar Metrics) # Human Computer Interaction Conference H5-index Computer Human Interaction (CHI) ACM Conference on Computer-Supported Cooperative Work & Social Computing (CSCW) ACM Symposium on User Interface Software and Technology (UIST) ACM Conference on Pervasive and Ubiquitous Computing (UbiComp) # Computer Vision & Pattern Recognition Conference H5-index IEEE Conference on ...

3D modelling files for RealPen @UIST 2016

Description: We present RealPen, an augmented stylus for capacitive tablet screens that recreates the physical sensation of writing on paper with a pencil, ball-point pen or marker pen. The aim is to create a more engaging experience when writing on touch surfaces, such as screens of tablet computers. This is ...